<!DOCTYPE html>
<html>
<head>
  <style>
p { background:#dad;
font-weight:bold;
font-size:16px; }
</style>
  <script src="http://code.jquery.com/jquery-latest.js"></script>
</head>
<body>
  <button>Toggle 'em</button>
 
<p>Hiya</p>
<p>Such interesting text, eh?</p>
<script>
$("button").click(function () {
$("p").toggle("slow");
});
</script>
 
</body>
</html>